# 方向
UP = 0
LEFT = 1 
RIGHT = 2
DOWN = 3

# color
WHITE = (255,255,255)
BLACK = (0,0,0)
BLUE=(0,0,255)
GOLD=(221, 204, 51)
LURE=(221, 102, 187)
GREEN=(0, 255, 0)
RED=(255,0,0)